Characterization of Polyolefin Bumper Recycled by Chemical Removal Method using Electronic Speckle Pattern Interferometry

화학적 박리방법과 ESPI에 의한 재생된 폴리올레핀 범퍼수지의 물성평가

  • 김현경 (조선대 대학원 고분자공학과) ;
  • 강기수 (조선대 대학원 기계설계공학과) ;
  • 김경석 (조선대 기계공학과) ;
  • 홍진후 (조선대 화학·고분자공학부)
  • Published : 1997.10.01

Abstract

Recycl ing of PP/EPR based bumper coated with polyester urethane paint has been per formed by chemical decoating method. Electronic Speckle Pattern Interferometry (ESP11 has been applied to characterize the deformation of polyolef in based bumper. In additon, physical properties and processability of recycled materials have been investigated by dynamic mechanical thermal analysis, impact test and melt flower index measurement. The results show that the deformation ratio of recycled material is higher than that of virgin one. The morphological change of EPR, degree of distribution and dispersion during the recycling process seem to be the most important factor for the deformation and the mechanical properties of recycled materials. The experimental results obtained show that ESPI is very powerful technique to study the thermal mechanical property of polyolefin bumper system.

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